Egg-beater



(No Model.) 2 Sheets-Sheet 1.

E. H. WHITNEY 8v J. L. KIRBY. EGG HEATER.

No. 463,818. Patented Nov. 24, 1891.

WI T NEEE 55. UK, 3%. 3M 72. WZFJv h,

new: Prren: cu. mo'rwumo alumna-run n c (No Model.) 2 Sheets-Sheet 2. E.H. WHITNEY 8v J. L. KIRBY.

EGG BEATER. 1 No; 463,818.

UNrreo States ATENT Fries.

EDIVARD H. \VHITNEY AND JOHN L. KIRBY, OF CAMBRIDGE, ASSIGNORS TO THEDOVER STAMPING COMPANY, OF BOSTON, MASSACHUSETTS.

EG G- B EATE R.

SPECIFICATION forming part of Letters Patent No. 463,818, dated November24,1891.

Application filed July 16, 1891. Serial No. 399,688. (No model.)

and JOHN L. KIRBY, both of Cambridge, in the county of Middlesex andState of Massachu- 5 setts, have invented a new and useful Improvementin Egg-Beaters, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, forming apart of this specification,

{ in explaining its nature.

This invention relates to egg-boaters; and the particular part of theegg-beater to which it relates is the connection and combination of thebeating-floats of a mechanical egg- 15 beater with the driving-pinionthereof. It is shown in connection with the mechanical eggbeater whichhas two interlocking beatingfloats revolving upon different but parallelor nearly parallel axes, but of course would be 2o applicable to anyother mechanical egg-beater in which the beating-floats are attached toa wheel or pinion.

In the drawings, Figure l is an elevation of an egg-beater of the sortabove referred to,

2 the construction of which, so far as it relates to the interlockingfloats, was patented May 31, 1870, No. 103,811. Fig. 2 is a view inupper part of one of the beating floats taken flatwise, and Fig. 3 is asimilar View of one 0 of the beatingfloats taken edgewise, these viewsbeing taken after the wire is cut. Figs.

5 and 6 are similar views, one flatwise and one edgewise, of the upperpart of a beatingfloat after its tang has been shaped for appli- 3 5cation to the cogs. Fig. 7 is a plan of the upper part of a cog-pinion.Fig. 8 is a transverse section of one of the cog-pinions. Fig.

9 is a plan of the bottom of one of the cogpinions, and Fig. 10 is atransverse section of one of the cog-pinions at right angles with thesection Fig.8. Fig. 11 is a transverse section of one of the cog-pinionswith the float applied, and Fig. 12 is a similar transverse section atright angles to the one shown in Fig. 11.

5 Various methods have been devised for attaching the flatbeating-floats of mechanical egg-beaters to the cog-pinions which carrythem. One of these methods was by forming two staples on the under sideof thecog-pinions, through which the flat wire of the floats was passed,and these flat wires, being lapped over each other and bored through,were easily and readily held in place by passing the wire frame throughthem. Another way was by recessing the interior of the cog-pinion and 55 soldering the floats in place by the insertion of a Babbitt-metalbushing put in hot. Another way was to form the ends of the floats tofit specially-made recesses in the cogs by driving in a hard-metalbushing. Another was to fasten together the cog-pinion andbeating-floats by an eyelet passed through holes in the float andforming the bushing of the pinion. Another way was to cast a spur orprojection from. the center of the pinion and rivet the beating-floatsupon it.

In the present method the axis of the pinion is bored out from top tobottom and the pinion is slightly ooncaved on top and provided on topwith small recesses. It is also provided at the bottom with two smallstarts or projections the width of the float apart. The float is formedwith a tang of the length of the bore of the cog and with a shortsecondary tang at the outer end of the tang ust referred to. The firsttang is formed to fit the interior of the pinion, and the two parts ofthe float thus shaped form a cylinder of the size of the cylindricalwire of the supporting-frame of the beater. The edges of these twocurved tangsbeingbrought together, they are inserted in the hollow ofthe piniop, and the supplemental or terminal tang is turned down intothe recesses upon the upper side of the pinion. The recesses on theupper5 side of the pinion are at right angles with the line of theprojections on the under side of the pinion, and the width of thebeating-float fits between these lower projections, and thereby thefloat is'steadied, the pinion is bnshed, and the whole very firmlyfastened together.

In the drawings, -A is the handle of the beater. B B are thebeating-floats. They are made of flat wire. B is the frame around whichthe beating-floats revolve and which is fastened to the handle, as shownat b in Fig. 1. The pinions are marked E E. They are driven by thecog-wheel C, mounted on the side of the handle A, which is driven by adriving-handle D. The beating-floats, made of flat wire, are formed ateach end into a primary tang If, onv the end of which is a secondarytang t. The beating-float near its j unction with the tang '15 is bent,as shown in Fig. 6 at Z1 toward the tang ll, and the tangt is then bentat right anglesand coucaved into one-half of a hollow cylinder. It isobvious that if two of these pieces are put together edge to edge ahollow cylinder will be made, and the exterior of t is cylinder is to beof such a size as to readily tit the interior of the pinion E and form abushing thereto. The pinion E is concave on top, as shown in Figs. '7and 8, and at opposite ends of a diameter two recesses r are made belowthe general surface of the concavity. Upon the under side of this pinionare raised two spurs s near opposite ends of a diameter, which diameteris transverse to the diameter running through the recesses 0'. Thesespurs s are separated from each other by a distance equal to the widthof the beating-float B. The pinion is concave below, as shown at 71; inFigs. 8, 0, and 10, into which concavity the curvature shown at b isadapted to fit. The pinion E is bored through its center, and the curvedtangs of the two branches of the beating-float shown in Fig. 1 havetheir edges brought together, and the double tang (now cylindrical) isinserted in the axial cavity of the pinion and the supplemental tang's tare turned down into the recesses r, fastening the whole firmlytogether.

\Ve claim as our invention and desire to secure by Letters Patent of theUnited States-- 1. As a beating-float for a mechanical eggbeater, thefloat B, formed at each of its free ends into a tang molded into theform of a hollow half-cylinder t and provided with the supplemental tangt, substantially as and for the purpose described.

2. As an improvement in the mechanical egg-beater, the pinion E,centrally and cylindrically pierced and form ed with cogs on itsexterior edge and concaved on its two faces and provided with recesses'2' and spurs 8, substantially as and for the purpose described.

33. As an improvement in the mechanical egg-beater, the combination ofthe float 13, having its ends formed with the semi-cylindrical tangs tand supplemental tangs t, with the pinion E, centrally and cylindricallypierced and provided with cogs on its edge and concave on its two facesand provided with recesses r and spurs s, all co-operating together,substantially as and for the purposes described.

4-. As an improvement in the mechanical egg-beater, the beating-float13, formed at its ends into the semi-cylindrical tangtand provided witha supplemental tang If, in combination with the pinion E, centrally andcylindrically pierced and furnished with cogs upon its edge and concaveon its faces, and pro vided with recesses 7' and spurs s, and in furthercombination with the wire frame B, substantially as and for the purposedescribed.

5. As an improvement in the mechanical egg-beater, the beating-float B,provided with the semi-cylindrical tang t and auxiliary tang" t,incombination with the pinion E, provided with teeth upon its edge andconcave upon its faces and formed with recesses '1' and spurs .s', andthe wire frame 13, handle Afand driving-wheel 0, all substantially asand for the purpose described.

EDlVARD ll. '1 IITNEY. JOHN L. KIRBY.

Witnesses:

F. F. RAYMOND, 2d, .T. M. DOLAN.

